Gallons to Liters Converter
Convert US gallons to liters instantly, and liters back to gallons. Based on 1 US gallon = 3.785411784 liters.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 3.785412 Liters (l)
- Conversion
- 1 Gallons (US gal) = 3.785412 Liters (l)
Convert US gallons to liters, and liters back to gallons with the swap button. Useful for fuel, aquariums, recipes, and tank sizes listed in gallons when you need the metric figure. Enter the amount and read the result.
How this is calculated
This uses the US liquid gallon, which is defined as exactly 3.785411784 liters. Gallons are multiplied by that figure to get liters, and liters are divided by it to get gallons. Results are shown to six decimal places. The US gallon differs from the UK imperial gallon of about 4.546 liters.
How to use
- Enter the number of US gallons.
- Keep the direction on gallons to liters, or press Swap units for liters to gallons.
- Read the result in liters.
Examples
- Fuel fill:
10 gal = 37.854118 l - Single gallon:
1 gal = 3.785412 l - Liters to gallons:
1 l = 0.264172 gal
FAQ
- How do I convert gallons to liters?
- Multiply the number of US gallons by 3.785411784. For example, 5 gallons is about 18.93 liters.
- Is this the US or UK gallon?
- This tool uses the US liquid gallon of 3.785411784 liters. The UK imperial gallon is larger, about 4.546 liters, so use a UK-specific figure if that is what you need.